287041 has 4 divisors (see below), whose sum is σ = 294084. Its totient is φ = 280000.

The previous prime is 287003. The next prime is 287047. The reversal of 287041 is 140782.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57600 + 229441 = 240^2 + 479^2 .

It is a cyclic number.

It is not a de Polignac number, because 287041 - 2¹³ = 278849 is a prime.

It is a Duffinian number.

287041 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (287047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3460 + ... + 3541.

It is an arithmetic number, because the mean of its divisors is an integer number (73521).

2²⁸⁷⁰⁴¹ is an apocalyptic number.

It is an amenable number.

287041 is a deficient number, since it is larger than the sum of its proper divisors (7043).

287041 is an equidigital number, since it uses as much as digits as its factorization.

287041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7042.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 287041 is about 535.7620740590. The cubic root of 287041 is about 65.9651637402.

The spelling of 287041 in words is "two hundred eighty-seven thousand, forty-one".